Neocolors are one of my go-to art materials for art journaling. They are versatile and the colors are luxurious and saturated. They have a buttery smooth texture. Keep in mind that {like oil pastels or regular crayons} you cannot write directly on them {unless used like watercolor, dissolved} with many pens because they gunk up the nib or get wax on the fiber tip.

With a zillion color choices, how many do you need? It depends how you plan to use them, but my suggestion is to keep it simple. A small set of 10-15 will be more than enough for art journaling.